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Earnings Per Share - Additional Information (Detail) - $ / shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2020	Sep. 30, 2019	Sep. 28, 2020	Sep. 30, 2019
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Share-based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit	$ 11.83		$ 11.83
Share-based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit	$ 16.60		$ 16.60
Stock Options \| Exercise Prices Ranging from $11.83 to $16.60 Per Share
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Shares excluded from calculating diluted earnings per share	80		80
Restricted Stock Units (RSUs) \| Exercise Prices Ranging from $11.83 to $16.60 Per Share
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Shares excluded from calculating diluted earnings per share	3,187		3,187
Performance-Based Restricted Stock Units (PRUs) \| Exercise Prices Ranging from $11.83 to $16.60 Per Share
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Shares excluded from calculating diluted earnings per share	216		216
PRUs, RSUs and Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Shares excluded from calculating diluted earnings per share		407		862